Paul w



(No Model.)

' P. W. LEFFLER.

JOURNAL BOX FOR CRANK PINS,-

Patented Mar. 26, 1889.

N PETERS, Phaio-Lilhngmp .NITED STATES I PATENT Fries.

PAUL \V. LEFFLER, OF GRINNEIL, .IOlVA, ASSIGNOR TO CRAVER, STEELE & AUSTIN, OF SAME PLACE.

JOURNAL-BOX FOR CRANK-PINS.

SPECIFICATION forming part of Letters Patent No. 400,231, dated March 26, 1889.

Application filed December 3, 1886. Serial No. 220,611. (No model.)

To all whom it may concern.-

Be it known that I, PAUL WV. LEFFLER, a citizen of the United States, residing at Grinnell, in the county of Poweshiek and State of Iowa, have invented certain new and useful Improvements in J ournal-Boxes for Urank- Pins, of which the following is a specification.

My invention relates to journal-boxes for crank-pins.

The main object of the invention is to furnish a journal bearing or box specially suited for the attachment of the connecting-rod or pitman to the crank-pin of the crank or crankwheel in such machines as grain-harvesters, reapers, or other machines which need an unusual supply of lubricant.

In furnishing a journal-box of the kind stated one object of the invention has been to furnish a box which could be readily, quickly, and easily oiled without withdrawing any pins, plugs, or other stops, and which will at the same time retain the oil.

Another object is to furnish a box which can be readily and quickly put in place on or removed from the crank-pin; and a further object is to furnish. an improved hinge-connection which will admit of a limited lateral movement of the end of the connecting-rod or pitman without binding or cram ping the j ournal-box upon the crank-pin and its connections.

To the end of attaining the objects hereinbefore stated, my invention consists in constructions and combinations hereinafter fully described in such connection. with each other as I have deemed best to an understanding of how to construct, apply, and use the invention, and set forth in claims which recite, respectively, the different combinations constituting the novel features of the invention.

In the accompanying drawings, which illustrate one method of applying and utilizing my invention, Figure 1 is a central sectional elevation of the crank-wheel and a sectional elevation of the j ournal-box and clamp-plate; Fig. 2, an elevation of the crank-wheel, one end of the coupling-rod, and of my device; Fig. 3, a sectional elevation of the clamp-plate and oil-hole cover in the line w w in Fig. at; Fig. 4:, an elevation of the clamp-plate and oilhole cover; Fig. 5, an elevation of the crankwheel and a sectional elevation of the journal-box, the crank-pin, and clamp-plate in the line 00 :r in Fig. 1; Fig.6, an elevation of the end of the pitman and a sectional elevation of the crank-pin and journal-box in the line of Fig. 1.

Referring to the drawings by letter, the same letter indicating the same part in the different figures, letter A represents a crankwheel shaft; 13, a crank-wheel fixed to said shaft; C,an ordinary crank-pin secured to the Wheel B; D, my improved journal-box, held upon the crank-pin and crankwheel by a forked plate, E, and set-bolt F, which bolt passes through the clamp-plate and screws into the face of the crank-wheel.

G represents the end of a pitman f ulcrumed upon pintles d d, which project laterally, one from each side of the journal-box, and are held in an upright position by the pitman while the box and crank-pin revolve with the shaft.

The journalbox D has a cylindrical porti0n,D', that fits snugly over the crank-pin, is closed and enlarged at its outer end to form an OllCl1tmbGl,(l that is filled with waste and oil, and has an oil-hole, (Z in its upper side and near its inner end. The inner end of the journal-box has an annular outwardly-projecting flanged, to provide a broad bearing-surface that fits snugly in a recess, b, and bears against a seat, Z), formed in a boss, W, or any suitable part of the crankwheel.

The clamp-plate E has a semicircular recess, e, in one end, the projecting side parts, 6, of which and the walls of said recess fit closely against the outer surface of the cylindrical portion D of the journal-box and bears with its face against the outer face of the flange d. The clamp will thus hold the flanged end of the box I) closely against its seat in the crank-wheel, to prevent leakage of oil from the bearing, and by the same means hold the journal-box securely upon the crankpin, While permitting it to turn freely upon the crank-pin and in its seat in the crankwhcel.

The clamp-plate E has an offset portion, 2 which extends from the outer face of the boss b to the main face of the crank-wheel, and this ottset portion has a boss, 6", which fits snugly in a countersunk bolthole, b, in the crank-wheel, and a countersunk hole, 6, epposite the boss 0, through which the set-bolt l1 passes, as shown at Fig. :3, by which means the clamp-plate is securely held upon the face of the crank-wheel.

lhe journal-box I) is held by the pitman in such position while the crank pin rotates t'reely within said box that the oil-hole (Z is held at all times uppermost,and the clampplate E, or that portion thereof which comes in contact with the journal -box, revolves around the ournal-ho); in the same plane with the oil-hole (7 as shown in and 5.

The crank-wheel rotates, when in use, in the direction shown by the arrow at Figs. 2 and 5.

'hen the parts are in their relative positions, as shown by full lines at Fig. 5, the oilhole (1" will he llllPUVQlCtl, and oil or other lubricant for the hearing may be readily and quickly poured into said hole either when the maehineis stopped or when operating. \Yliile the crank-wheel passes through that portion oi? its rotation in which thebox I) will revolve or travel with the oilhole d at its rear side, and while the oil would be thrown out by centrifugal tin'ce, the oilhole will be covered and closed by the wall of the recess 6 and arms c of the plate E, as shown by dotted lines at Fig. 5. 'While the oil-hole is uncovered by the plate I), the box I) will be traveling or moving with the oil-hole (7" at its forward side, and the oil willbe forced inwardly instead of outwardly by the motion oi? thebox I) through that part of its revolution.

The end of the pitman G has strap-plates G, which project beyond the bar and form 3 cup-bearings g, which fit over the pintles d of the journal-box I). The strap-plates G are secured to the upper and lower sides of the pitman G by bolts and nuts (I and by a bolt, G, and adjustable nut-lock G, held securely in its ad justcd position by a pin, 9, that passes through a slot, in the end of the bolt G and rests in notches g in the upper face of the nut G bearing, on which the pitman-rod may swing laterally when required.

Various methods of securing the box I) to the crank-wheel will readily suggest themselves to any one skilled in this class of devices, and it will be readily seen by such persons that the journal-box may be held in place by a suitable device separate from the claiupilate E, which would then only need be adapted for its use as an oil-hole cover; hence I do not limit my claims to the specific construction shown of any of the separate parts of the device; but

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

In combination, a crankshaft, crankwheel crank-pin, journal-box, and a clamply this means the bearings may be adjusted accurately to it over the ends oi? the pintles (l and secure a closelitting plate secured to the crank-wheel to bear against the journal-box and hold it on the crank-pin, substantially as described.

2. In combination, a crank-wheel and a crank-pin, a journalbox having an annular flange, and a clamp-plate secured to the crankwheel to bear against said flange and hold the journal-box on the crank-pin, sul'istztntially as described.

6. In combination, a crank-wh eel and. crankpin, a journal-box having an oil-hole, and a plate secured to the crank-wheel and provided with a recess titted over the journal-box in the same plane as the oil-hole and adapted to cover the oi l-hole during a portion of the revolution of the crank-pin and journal-box, substantially as described.

4. In combination, a crank-wheel and crankpin, a journal-box having an ei'ilarged outer end to form a receptacle for waste and lubricant and having an oil-hole, and a plate socured to the crank-wheel and provided with a recess titted over the journal-box in same plane as and adapted to cover the oil-hole during a portion of the revolution oi the crank-pin and journal box, substantially as described.

In combination, a crank-wh eel and crank pin, a jOIlll'liLl-lMJX having an annular ila-i'ige and an oil-hole, and. a plate secured to the crank-wheel with a recess in one end fitted over the journal-box in same plane as the oil-hole and rest-in against the annular flange to hold the journal-box in place on the crankp in and cover the oil-hole during a portion of the revolution of the crank-pin and journalbox, substantially as described.

(3. In combination, a crank-wheel and crankpin, a journal-limx having an enlarged outer end for waste and lubricant, an annular flange on its inner end, and an oil-hole, and a clamp-plate secured to the cranlcwheel, with a recess in one end titted over the journal-box in the same plane as the oil-hole and resting against the annular flange to hold the journal-box in place on the crank-pin and to cover the oil-hole during a portion of the revolution of the crank-pin and journalbox, substantially as described.

7. The ci'nnbination oi? the crank-wheel. l3, crank-pin journal-box I), having a flange, (1", upon its inner end, an oil-hole d", and a closed and enlarged outer end, andv a clamp-plate, E, secured to the eranlewheel, substantially as described.

8. In combination a crank-wheel, crankpin, a journal-box having an oil-hole and annular flange at its inner end seated in a recess in the crank-wheel, and a cla1np-plate secured to the crank-wheel and adapted to hold the jOlll'lltl-bOX. on the crank-pin and inte'rmittingly cover the oil-hole substantially as and for the purpose described.

9. In combination, a crank-wheel, crankpin, a journal-box having an oil-hole and annular flange at its inner end seated in a re cess in the crank-wheel, and an enlarged outer end for an oil-reservoir, and a clampplate secured to the crank-Wheel and adapted to hold the journal-box on the crank-pin an d intermittingly cover the oil-hole, substantially as and for the purpose described.

10. In combination, a crank-wheel and crank-pin, a journal-box having an enlarged outer end for an oil-reservoir, an annular flange on its inner end, an oil-hole and pintles (I, a pitman having bearings g for the pintles (Z, and a clamp-plate secured to the crankwheel and adapted to hold the journal-box in place and intermittingly cover and uncover the oil-hole, substantially as and for the purpose specified.

11. In combination With the crank-Wheel and crank-pin, the journal-box constructed substantially as described and seated in a recess in the crank-Wheel, and pitman having straps With bearings g for the pintles d of the journal-box, substantially as and for the purpose specified.

12. The combination, With the crank-Wheel and crank-pin, of journal-box D, having oilholes d and pintles d, a pitman fulcrumed upon said pintles, anda clamp-plate, E, secured to the crank-Wheel by a set-bolt, F, to revolve with the crank-wheel and cover the oil-hole (1 during a portion of the revolution of the crank-pin and j ournal-bon and admit of free lateral movement of the pitman, substantially as described.

13. In combination With the crank-Wheel and crankpin, a journal-box, D, having an annular flange, (1 and pintles d, a pitman fulcrumed upon said pintles, and a clamp-plate, E, secured to the crank-Wheel to revolve therewith and rest against the flange d to hold the journal-box in place, substantially as described.

In testimony whereof I afiiX my signature in presence of two Witnesses:

' PAUL \V. LEFFLER.

Witnesses:

R RIOKER, J. G. PETTIT. 

